[INFO] fetching crate better-future 0.0.0...
[INFO] testing better-future-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate better-future 0.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate better-future 0.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate better-future 0.0.0
[INFO] finished tweaking crates.io crate better-future 0.0.0
[INFO] tweaked toml for crates.io crate better-future 0.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ff9d0b392d48d9ad25891772e1706608bd49415e9caeb3406017914857ca116
[INFO] running `Command { std: "docker" "start" "-a" "4ff9d0b392d48d9ad25891772e1706608bd49415e9caeb3406017914857ca116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ff9d0b392d48d9ad25891772e1706608bd49415e9caeb3406017914857ca116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff9d0b392d48d9ad25891772e1706608bd49415e9caeb3406017914857ca116", kill_on_drop: false }`
[INFO] [stdout] 4ff9d0b392d48d9ad25891772e1706608bd49415e9caeb3406017914857ca116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae878dee4877574c1865b3dd0c5f52be3948c5dda95fa38708fd3f400cdff960
[INFO] running `Command { std: "docker" "start" "-a" "ae878dee4877574c1865b3dd0c5f52be3948c5dda95fa38708fd3f400cdff960", kill_on_drop: false }`
[INFO] [stderr]    Compiling better-future v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "ae878dee4877574c1865b3dd0c5f52be3948c5dda95fa38708fd3f400cdff960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae878dee4877574c1865b3dd0c5f52be3948c5dda95fa38708fd3f400cdff960", kill_on_drop: false }`
[INFO] [stdout] ae878dee4877574c1865b3dd0c5f52be3948c5dda95fa38708fd3f400cdff960
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4414b839138ddc1cc94cb8f9b13cacea3688f3457518ebd239fa6e8b54b57d7
[INFO] running `Command { std: "docker" "start" "-a" "a4414b839138ddc1cc94cb8f9b13cacea3688f3457518ebd239fa6e8b54b57d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling better-future v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "a4414b839138ddc1cc94cb8f9b13cacea3688f3457518ebd239fa6e8b54b57d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4414b839138ddc1cc94cb8f9b13cacea3688f3457518ebd239fa6e8b54b57d7", kill_on_drop: false }`
[INFO] [stdout] a4414b839138ddc1cc94cb8f9b13cacea3688f3457518ebd239fa6e8b54b57d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96702d0f7871ce09a8bddb07141a19c2433345701c7cf8268e67be99e3dd5be9
[INFO] running `Command { std: "docker" "start" "-a" "96702d0f7871ce09a8bddb07141a19c2433345701c7cf8268e67be99e3dd5be9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/better_future-13055886ac82df71)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests better-future
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "96702d0f7871ce09a8bddb07141a19c2433345701c7cf8268e67be99e3dd5be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96702d0f7871ce09a8bddb07141a19c2433345701c7cf8268e67be99e3dd5be9", kill_on_drop: false }`
[INFO] [stdout] 96702d0f7871ce09a8bddb07141a19c2433345701c7cf8268e67be99e3dd5be9